Chain wall jumps, icy slides and precise landings in Airtime, an independent browser rewrite of Urban Terror's jump movement. It focuses on movement maps and practice rather than the original game's combat campaign.

The project describes its Rust and WebAssembly implementation as an independent rewrite of Urban Terror 4.3 jump physics. Its map browser has Featured and Browse Maps tabs that download maps from a hosted mirror; importing a local .pk3 is optional, not the only way to start. Some maps refer to original base textures the engine does not include and show placeholders instead.

The site labels multiplayer experimental. Hosted maps can be played without importing your own files; actual online-session performance is not claimed here.